Covalent Compounds and Bonds

The video tutorial explains how to determine if NO2 is ionic or covalent by examining the periodic table. It identifies nitrogen and oxygen as non-metals, leading to the conclusion that NO2 is a covalent compound. The video further explains the concept of covalent bonds, where electrons are shared between atoms, using the Lewis structure of NO2 as an example. The tutorial concludes by reinforcing that NO2 is a molecular compound.

What type of elements are nitrogen and oxygen, which form NO2?

• Noble gases

• Metalloids

• Non-metals

• Metals

What type of compound is NO2?

• Ionic

• Metallic

• Covalent

• Amphoteric

In a covalent bond, what happens to the electrons?

• They are transferred from one atom to another.

• They are shared between atoms.

• They are lost to the environment.

• They are absorbed by the nucleus.

How many pairs of electrons are shared in a double bond in NO2?

• One pair

• Two pairs

• Three pairs

• Four pairs

What is another name for a covalent compound?

• Amphoteric compound

• Metallic compound

• Molecular compound

• Ionic compound

Who is the presenter of the video?

• Dr. C

• Dr. D

• Dr. A

• Dr. B